Category: Networking

In this article, there is another command which is important to be looked out for. It is the command which is executed in the command prompt of Cisco’s network device generally. It can be classified as generally Cisco-based command since it is using CDP (Cisco Discovery Protocol).

CDP itself is a propietary protocol designed by Cisco Systems. For detail information specified in Wikipedia site, CDP or The Cisco Discovery Protocol (CDP) is a proprietaryData Link Layer protocol developed by Cisco Systems. It is used to share information about other directly connected Cisco equipment, such as the operating system version and IP address. CDP can also be used for On-Demand Routing, which is a method of including routing information in CDP announcements so that dynamic routing protocols do not need to be used in simple networks.

For further information about CDP, please refer to this link in Wikipedia or in the Cisco official page. One of the command specifically using the CDP (Cisco Discovery Protocol) is the command below :

In this article, there will be an information delivered on how to check MAC Address in Cisco Network Devices in the Command Line.

Cisco Network Devices such as Routers, Switches maintains static MAC address entries that are saved in its startup configuration across reboots and flushes the dynamic entries.

So, in order to display that information about the MAC address entries which is displayed in the form of a table, use the show mac address-table command and type it in the command prompt provided in the CLI (Command Line Interface) within the privilege command mode.

To enable a privilege command mode in a router, read the following article title ‘Enabling Cisco Network Device to Permit Privilege Command’ in this link. After enabling privilege command mode has already done successfully, type the ‘show mac address-table’ command in it as shown below :

This is series of articles used to describe on how to perform several functions on Cisco-based Network Device. Generally, if those devices such as Router or Switch doesn’t exist or it is very difficult to manage ourselves for getting our own hands on it, Cisco has given an option to be able to just simulate the functions executed in order to configure those devices further.

Cisco has provided an utility which can be used to simulate several commands which can be run similar with the one performed in real devices. The program or app is called Packet Tracer. By using this tool called Packet Tracer, it is quite convenient since it can be installed in local PC. In general, most of the functions available on Cisco’s networking devices can be performed in this simulator.

Packet Tracer itself is explained in Cisco’s official website located in this link, where Cisco Packet Tracer is a powerful network simulation program that allows students to experiment with network behavior and ask “what if” questions. As an integral part of the Networking Academy comprehensive learning experience, Packet Tracer provides simulation, visualization, authoring, assessment, and collaboration capabilities and facilitates the teaching and learning of complex technology concepts.

Basically, it is quite innovative to provide network simulation and visualization tool and helps practicing configuration skills in the desktop or mobile device without having to own the real networking device at all. Below is the step performing how to enable or turn on privilege command mode :

This is series of articles used to describe on how to perform several functions on Cisco-based Network Device as an intro. Generally, if those devices such as Router or Switch doesn’t exist or it is very difficult to manage ourselves for getting our own hands on it, Cisco has given an option to be able to just simulate the functions executed in order to configure those devices further.

Cisco has provided an utility which can be used to simulate several commands which can be run similar with the one performed in real devices. The program or app is called Packet Tracer. By using this tool called Packet Tracer, it is quite convenient since it can be installed in local PC. In general, most of the functions available on Cisco’s networking devices can be performed in this simulator.

Packet Tracer itself is explained in Cisco’s official website located in this link, where Cisco Packet Tracer is a powerful network simulation program that allows students to experiment with network behavior and ask “what if” questions. As an integral part of the Networking Academy comprehensive learning experience, Packet Tracer provides simulation, visualization, authoring, assessment, and collaboration capabilities and facilitates the teaching and learning of complex technology concepts.